7-methoxy-1ξ-oxo-1ξ-phenyl-(3ar,3bt,11at)-1,2,3a,3b,4,5,11,11a-octahydro-1λ5-naphtho[2,1-e]phosphindol-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 50731-87-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,7,3 and 1 respectively; the second part has 2 digits, 8 and 7 respectively. Calculate Digit Verification of CAS Registry Number 50731-87: (7*5)+(6*0)+(5*7)+(4*3)+(3*1)+(2*8)+(1*7)=108 108 % 10 = 8 So 50731-87-8 is a valid CAS Registry Number.